Wicket-door for rolling shutters.



L. G. WILSON.

WIOKBT DOOR FOR ROLLING SHUTTERS.

APPLICATION .FILED JUNE 22, 1908.

929,74 1 Patented Aug. 3, 1909;

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-gated metal, or' ofvmutually inter-locking4 LESTER e.wn.soN,orLAR'cHMoNT, NEW Yorin.

wiener-Doon Fon ROLLING sHU'r'rEns.

Specification of Letters Patent.

Patented ug. 3, 4`1909.

i Application lediJunel22, 1968. Serial No; 439,661.

To'all whom it may concern: V

Beit known that-I", Lnsrnn G. WiL-SON, a citizen of the United States,residing .at Larchmont, county of Viestchester, State of New York, haveinvented certain new and.

usefullrnprovements in Wicket-Doors -for Rol-ling Shutters, of which thefollowing is a full, clear, and exact description.

My invention refers particularly to that class of shutters made offlexible or corrumetallic slats, especially when used `to protect largedoor-ways or windows, and has for its object to provide a means bywhich, without o erating the always comparatively massive s utterproper, free passage through it may be maintained, foizindividuals, whenthe-shutter is closed. This object :I secure by a 'novel constructionand combination of parts which permits a regularly hingeddoor to becomea part of the shutter when the.

latterv is closed which door may beequipped with a knob, latch, lock orany other usual fixture. When the shutter proper is to be opened thisauxiliary door may be swung com letely babk andlout of the shutteropening eaving the latter free for passage over its entire area andwithout lobstruction of any kind, l Referring to the drawings Figure 1is an elevation of thelower left hand corner of a rolling shutter of theclass referred to, the shutter being represented as down onclosed andsupposed to rise, in opening, `and roll upon a suitable shaft or rol erplaced above in a manner well understood in the art. This view shows myimprovedwicket door in operative position, the remainder of the shutterbeing broken awayto save space. F'v. 2 is a section, looking from theright, ta en on the'line 2--2 of Fig. 1. Fig. 3 is'a section, lookingfrom above, taken on the line 3-3 of Fig. 1.

'The'shutter.a shown as ofcorrugated maf terial, moves 'up and down invrunways, b; a

bottom bar, c, bounding the lower edge or' ther shutter, affords afinish to this edge and fits the shutter closely to the floor.

From lthe body ofthe shutter just above thev bottom bar, c, and to theright oi the left-hand runway, b, is cut a `rectangular piece` ofvdimensions just great enough to permit the insertion of a doorfranie, d;lthis frame may be of angle iron and attached to the side of the shutteropening and runway by hinges, e, e. When in use, as in to the outside ofthe door frame at top and bottom by pivot pins, y. These clamp barsYiigures', this frame -is held in place' in the I curtain by-two shortclamp bars,f,f, hinged 4 when thrown outward suflicientiy (counter .v

clock-wise referring Ato Fig. 3) clear the curtain and allow thel'rarne, d, to swing freely in.

With

and out of its opening'in the curtain. the irame 1n place and these barsthrown ,inward (clock-wise referring to Fig. 3) they will hold the frame'firmly against the curtain andare themselves prevented from 'turningback and releasing the 'frame bythe springr click, lz., attached to theinside ofiilie shutter.

These clicks, as l have called them, are of l spring metal, such assteel, brass, phosphor-` bronze, e. g/,cut in rectangular leal" forniand attached at one end by screws 111.1 to the i'rame d. At the tree endof each click is a. lug or det-ent h2 fixed to the spring and normallypressed inward by the resiliency oi' the click and ythrough the 'framed, a suitable slot 71:"

having been cut in the 'frame 'for this purpose.

One side ol' each vlug t" isbeveled as at It* so that as the clamp barfswings around to the positionshown in Fig. 3 the lug will be -forced outagainst the resiliency of the spring to fall back when the clamp bar haspassed thereby holding thefclampV bar in locked position and preventingthe frame from being'swun'gaway from the curtain. Many `mechanicalequivalents of this clickwill readilyl suggest themi, i, is a door j;this may be of the same material as the shutter and, indeed, mayr befrom ythe verypiece which has been cut\'from it to make room for thedoor; or it may be of any other material of similar or dilferent form.It ought, of course,vt 0 be fire-proof selves and I do notconfine-myself, therefore, -to `the exact.A form described. l,lorking in'this door frame and attached `to it by hinges when the shutter isii'r'efproof and if of the same material and 'form of material as theshutteritself will present a lbetter'appearance as .in such casethelines produced by corrugated or slat construction will extendl from onesideof the shutter to the other withno interruption other than thatv dueframe and mounting of thefdoor. As previously vstated' this door may bequi ped with any preferred style of loc latci or the shutter it may beused exactly as any ordinary door 1n anyusual location.

to the f i .other iixture; Vwhen its frame is in place in l VVhelrtheshutter is to be raised the de or i the l frame, d, carrying the'door,y, closed upon 1t,

is released from the shutter by drawing back the spring clicks, h, andthrowing the clamp bars, Af, outwardly after which 1t is swung back'uponits hinges through `180" until it rests against the wall, fr, to whichit may be l 'held by any suitable fastening. vThe shutter may now beraised to any desired extent by use ol any of the various lmechanismsknown to the art. l

My invention is simple, not easily de' ranged, presents a goodappearance, is leconomical in construction, and effective. Whileintended specially for use with a rolling shutter it is not necessarilyrestricted thereto but may be as readily ada ted toa sliding orswinging- Shutter. "W ien" used with afrollingshutt'er the latter mayroll from above/as in the construction described, or. from below; or thecurtain might roll from the one side or the other. Also While inpractice shutters large enough to make a subsidi ary door desirable aregenerally of metal and fire proof, other materials, some of them notiire proof, may, in certain cases, be used to' advantage; with all ofthese constructions my invention may beusefully employed.

. Having thus described my 'invention and indicated its scope, I claim:

1. In a shutter,- a door Vframe inovably attached to.` pointsindependent of said shutter, said frame being' adapted to cooperate withan opening in said shutter; bars p ivoted '40 ulpon and ada ted tocla-mp said frame to t e edges of sai( shutter` opening; and means `forretaining said bars `1n their clamping' position. i

atte; has

3. In a'rollingrmetallic shutter, the door L45 frame d hinged to pointsindependent of saidf shutter, said frame beingv ada ted to co crate withan lopening in. sai shutter; t e

door j hinged tosaid frame;- the clam)- bars pivoted upon said frame andadapte" to anchor it to said shutter; and the s ring clicks,

. 71 attached to"said frame and a apted toretain said clamp bars in`their clamping position, substantially as and for the purpose defscribed.

In testimony whereof I have hereunto set my hand in vthe presenceV oftwo subscribing` Witnesses.

. LESTER G. WILSON. Witnesses: 'i y ELMER SHIRLYOUNG, JOHN A KEHLENBECK-

